Originally Posted by
El Chaba
[snip] my first move would be to get a proper pin tool to tighten the locknut FIRMLY. Failing that, my second move would be to get a standard Stronglight hex locknut [...]
argh, I was going to suggest the pin tool Grand Bois made specifically for Stronglight headsets, cool tool but I see it's no longer listed on their website.
I don't think SL ever made a hex-head top nut, I think they were all octagons. Sorry to quibble...